TM-9-2320-361-24-1
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2
AUGUST 2006
TM-9-2320-361-24-1 - Page 159 of 1176
TM 9-2320-361-24-1
0009 00
0009 00-1/2 blank
FIELD TROUBLESHOOTING
2-1/2 TON, 6X6, M44A2 SERIES TRUCKS (MULTIFUEL)
COMPRESSED AIR AND BRAKE SYSTEM TROUBLESHOOTING INDEX
PARKING BRAKE
1.
Parking brake will not hold vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-2
2.
Parking brake drags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-2
SERVICE BRAKES
1.
Brake pedal low, soft, or goes to floorboard (weak or no braking) . . . . . . . . . . . . . .
0010 00-4
2.
Excessive pedal pressure required to stop vehicle (brake pedal stops
two inches or more above floorboard); no apparent air system failure . . . . . . . . .
0010 00-6
3.
Vehicle pulls to right or left when applying brakes . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-8
4.
Brakes drag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-10
5.
Brakes squeal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-11
COMPRESSED AIR
1.
No air pressure, or compressed air reads below 60 psi (low air pressure
warning buzzer sounding, indicating air pressure not building up to
normal operating range as indicated by gauge). . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-12
2.
Air pressure does not build up to normal operating pressure
(above 85 psi) according to gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-14
3.
Air pressure exceeds maximum (gauge reads over 120 psi) and safety
valve opens to release pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-14
4.
Low or no reading on air pressure gauge, and warning buzzer shuts off . . . . . . . .
0010 00-16
5.
Warning buzzer fails to sound on low pressure (below 60 psi) . . . . . . . . . . . . . . . . .
0010 00-16
AIR OPERATED ACCESSORIES
1.
Windshield wipers inoperative or operate slowly (gauge at normal
operating pressure) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-18
2.
Front wheel drive does not engage (front wheel drive lock-in switch
engaged) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-20
3.
Air horn does not work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0010 00-22
MALFUNCTION
TROUBLESHOOTING
NO.
MALFUNCTION
WORK PACKAGE/PAGE
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